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@@ -0,0 +1,181 @@
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+package com.develop.foodcooking;
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+
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+import android.content.Context;
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+import android.content.pm.PackageInfo;
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+import android.content.pm.PackageManager;
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+import android.os.Build;
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+import android.os.Environment;
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+import android.os.Looper;
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+import android.util.Log;
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+import android.widget.Toast;
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+
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+import java.io.File;
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+import java.io.FileOutputStream;
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+import java.io.PrintWriter;
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+import java.io.StringWriter;
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+import java.io.Writer;
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+import java.lang.reflect.Field;
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+import java.text.DateFormat;
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+import java.text.SimpleDateFormat;
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+import java.util.Date;
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+import java.util.HashMap;
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+import java.util.Map;
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+
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+public class CatchException implements Thread.UncaughtExceptionHandler {
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+ public static final String TAG = "CatchException";
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+
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+ //系统默认的UncaughtException处理类
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+ private Thread.UncaughtExceptionHandler mDefaultHandler;
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+ //CrashHandler实例
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+ private static CatchException INSTANCE = new CatchException();
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+ //程序的Context对象
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+ private Context mContext;
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+ //用来存储设备信息和异常信息
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+ private Map<String, String> infos = new HashMap<String, String>();
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+
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+ //用于格式化日期,作为日志文件名的一部分
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+ private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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+
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+ //私有化构造器
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+ private CatchException() {
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+ }
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+
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+ /**
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+ * 获取CrashHandler实例 ,单例模式
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+ */
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+ public static CatchException getInstence() {
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+ return INSTANCE;
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+ }
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+
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+ /**
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+ * 初始化
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+ *
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+ * @param context
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+ */
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+ public void init(Context context) {
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+ mContext = context;
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+ //获取系统默认的UncaughtException处理器
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+ mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
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+ //设置该CrashHandler为程序的默认处理器
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+ Thread.setDefaultUncaughtExceptionHandler(this);
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+ }
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+
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+ /**
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+ * 当UncaughtException发生时会转入该函数来处理
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+ */
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+ @Override
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+ public void uncaughtException(Thread thread, Throwable e) {
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+ if (!handleException(e) && mDefaultHandler != null) {
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+ //如果用户没有处理则让系统默认的异常处理器来处理
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+ mDefaultHandler.uncaughtException(thread, e);
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+ } else {
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+ try {
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+ Thread.sleep(3000);
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+ } catch (InterruptedException e1) {
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+ Log.e(TAG, "error : ", e1);
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+ }
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+ //退出程序
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+ android.os.Process.killProcess(android.os.Process.myPid());
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+ System.exit(1);
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+ }
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+ }
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+
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+ /**
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+ * 自定义错误处理,收集错误信息 发送错误报告等操作均在此完成.
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+ * @param ex
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+ * @return true:如果处理了该异常信息;否则返回false.
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+ */
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+ private boolean handleException(Throwable ex) {
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+ if (ex == null) {
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+ return false;
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+ }
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+ //使用Toast来显示异常信息
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+ new Thread() {
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+ @Override
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+ public void run() {
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+ Looper.prepare();
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+ Toast.makeText(mContext, "很抱歉,程序出现异常,即将退出.", Toast.LENGTH_LONG).show();
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+ Looper.loop();
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+ }
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+ }.start();
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+ //收集设备参数信息
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+ collectDeviceInfo(mContext);
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+ //保存日志文件
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+ saveCrashInfo2File(ex);
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+ return true;
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+ }
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+
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+ /**
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+ * 收集设备参数信息
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+ * @param ctx
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+ */
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+ public void collectDeviceInfo(Context ctx) {
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+ try {
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+ PackageManager pm = ctx.getPackageManager();
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+ PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES);
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+ if (pi != null) {
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+ String versionName = pi.versionName == null ? "null" : pi.versionName;
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+ String versionCode = pi.versionCode + "";
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+ infos.put("versionName", versionName);
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+ infos.put("versionCode", versionCode);
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+ }
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+ } catch (PackageManager.NameNotFoundException e) {
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+ Log.e(TAG, "an error occured when collect package info", e);
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+ }
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+ Field[] fields = Build.class.getDeclaredFields();
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+ for (Field field : fields) {
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+ try {
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+ field.setAccessible(true);
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+ infos.put(field.getName(), field.get(null).toString());
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+ Log.d(TAG, field.getName() + " : " + field.get(null));
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+ } catch (Exception e) {
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+ Log.e(TAG, "an error occured when collect crash info", e);
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+ }
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+ }
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+ }
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+
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+ /**
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+ * 保存错误信息到文件中
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+ * @param ex
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+ * @return 返回文件名称, 便于将文件传送到服务器
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+ */
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+ private String saveCrashInfo2File(Throwable ex) {
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+
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+ StringBuffer sb = new StringBuffer();
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+ for (Map.Entry<String, String> entry : infos.entrySet()) {
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+ String key = entry.getKey();
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+ String value = entry.getValue();
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+ sb.append(key + "=" + value + "\n");
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+ }
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+ Writer writer = new StringWriter();
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+ PrintWriter printWriter = new PrintWriter(writer);
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+ ex.printStackTrace(printWriter);
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+ Throwable cause = ex.getCause();
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+ while (cause != null) {
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+ cause.printStackTrace(printWriter);
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+ cause = cause.getCause();
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+ }
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+ printWriter.close();
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+ String result = writer.toString();
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+ sb.append(result);
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+ try {
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+ String time = formatter.format(new Date());
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+ String fileName = "/crash-" + time + ".txt";
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+ if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
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+ String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/cofa_applog";
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+ File dir = new File(path);
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+ if (!dir.exists()) {
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+ dir.mkdirs();
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+ }
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+ FileOutputStream fos = new FileOutputStream(path + fileName);
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+ fos.write(sb.toString().getBytes());
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+ fos.close();
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+ }
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+ return fileName;
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+ } catch (Exception e) {
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+ Log.e(TAG, "an error occured while writing file...", e);
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+ }
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+ return null;
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+ }
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+
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+}
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